12101120211979 has 2 divisors, whose sum is σ = 12101120211980. Its totient is φ = 12101120211978.

The previous prime is 12101120211967. The next prime is 12101120212037. The reversal of 12101120211979 is 97911202110121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12101120211979 - 2²⁵ = 12101086657547 is a prime.

It is a super-2 number, since 2×12101120211979² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12101120211919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050560105989 + 6050560105990.

It is an arithmetic number, because the mean of its divisors is an integer number (6050560105990).

Almost surely, 2^{12101120211979} is an apocalyptic number.

12101120211979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101120211979 is an equidigital number, since it uses as much as digits as its factorization.

12101120211979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 37.

The spelling of 12101120211979 in words is "twelve trillion, one hundred one billion, one hundred twenty million, two hundred eleven thousand, nine hundred seventy-nine".